Preflare NLFF model quality for the 231 large flares under study. The relative distribution of the solenoidal energy ratio (E_div/E) vs. the current-weighted angle (θ_J) is shown. Stars and circles represent X- and M-class flares, respectively. Numbers in brackets indicate the ratio of confined to eruptive flares within the tested sample. Blue (red) indicates an confined (eruptive) flare type.